Build Configuration

Please be aware that this page doesn't reflect all the options used to build Mullvad Browser Nightly.

Source

Built from https://gitlab.torproject.org/tpo/applications/mullvad-browser/-/commit/d20043d4c7725b18ef41fa2c88b53c10d9be423e

Build platform

target
x86_64-w64-mingw32

Build tools

Compiler Version Compiler flags
/var/tmp/dist/mingw-w64-clang/bin/x86_64-w64-mingw32-clang 19.1.7 -ffunction-sections -fdata-sections -fno-math-errno -D_HAS_EXCEPTIONS=0 -include _mingw.h
/var/tmp/dist/mingw-w64-clang/bin/x86_64-w64-mingw32-clang++ 19.1.7 -Wno-incompatible-ms-struct -fno-rtti -fno-sized-deallocation -fno-aligned-new -ffunction-sections -fdata-sections -fno-math-errno -fno-exceptions -D_HAS_EXCEPTIONS=0 -fms-extensions -include _mingw.h -g -gcodeview -O2 -fomit-frame-pointer -funwind-tables
/var/tmp/dist/rust/bin/rustc 1.86.0

Configure options

--target=x86_64-w64-mingw32 MOZILLA_OFFICIAL=1 --enable-update-channel=nightly MOZ_APP_BASENAME=MullvadBrowser 'CFLAGS=-include _mingw.h' 'CXXFLAGS=-fms-extensions -include _mingw.h' LDFLAGS= --with-toolchain-prefix=x86_64-w64-mingw32- CC=x86_64-w64-mingw32-clang CXX=x86_64-w64-mingw32-clang++ HOST_CC=clang HOST_CXX=clang++ AR=llvm-ar MOZ_SOURCE_REPO=https://gitlab.torproject.org/tpo/applications/mullvad-browser MOZ_SOURCE_CHANGESET=d20043d4c7725b18ef41fa2c88b53c10d9be423e --with-distribution-id=net.mullvad 'BINDGEN_CFLAGS=-I/var/tmp/dist/mingw-w64-clang/x86_64-w64-mingw32/include/c++/v1 -I/var/tmp/dist/mingw-w64-clang/x86_64-w64-mingw32/include' --enable-js-shell --enable-rust-simd --disable-eme MOZ_TELEMETRY_REPORTING= --enable-proxy-bypass-protection --disable-bits-download WASI_SYSROOT=/var/tmp/dist/wasi-sysroot --disable-backgroundtasks MAR_CHANNEL_ID=mullvadbrowser-mullvad-nightly ACCEPTED_MAR_CHANNEL_IDS=mullvadbrowser-mullvad-nightly --enable-nss-mar --disable-maintenance-service --disable-default-browser-agent --disable-notification-server --enable-base-browser-update --with-updater-url=https://nightlies.tbb.torproject.org/nightly-updates/updates/mullvadbrowser-nightly-windows-x86_64 --with-branding=browser/branding/mb-nightly 'MOZ_APP_REMOTINGNAME=Mullvad Browser Nightly' --disable-crashreporter --disable-parental-controls --with-user-appdir=Mullvad --disable-system-policies --disable-legacy-profile-creation MOZ_WINDOWS_RS_DIR=/var/tmp/dist/windows-0.58.0 --enable-strip --with-relative-data-dir=../Data --with-base-browser-version=tbb-nightly.2025.12.08